La presente invention concerne une antenne, notamment millimetrique, et un radar equipe d'une telle antenne.L'antenne comporte un cylindre metallique (1) a ouverture rayonnante helicoidale (2) et un illuminateur (5) place a l'interieur du cylindre et s'etendant le long de l'axe (10) de ce dernier. Le cylindre (1) et L'illuminateur (5) ont un mouvement de rotation relatif.L'invention s'applique en particulier pour la detection d'objets dans un domaine donne. A ce titre, elle s'applique par exemple pour la surveillance d'aeroports.

Antenne, notamment millimetrique et radar equipe d'une telle antenne

A collision sense and avoidance system and method and an aircraft, such as an Unmanned Air Vehicle (UAV) and/or Remotely Piloted Vehicle (RPV), including the collision sense and avoidance system. The collision sense and avoidance system includes an image interrogator identifies potential collision threats to the aircraft and provides maneuvers to avoid any identified threat. Motion sensors (e.g., imaging and/or infrared sensors) provide image frames of the surroundings to a clutter suppression and target detection unit that detects local targets moving in the frames. A Line Of Sight (LOS), multi-target tracking unit, tracks detected local targets and maintains a track history in LOS coordinates for each detected local target. A threat assessment unit determines whether any tracked local target poses a collision threat. An avoidance maneuver unit provides flight control and guidance with a maneuver to avoid any identified said collision threat.

Aircraft collision sense and avoidance system and method

An electrical assembly for use in various operating environments such as a casing of a combustion turbine 10 is provided. The assembly may include an electrical energy-harvesting device 51 disposed in a component within the casing of the turbine to convert a form of energy present within the casing to electrical energy. The harvesting device is configured to generate sufficient electrical power for powering one or more electrical devices therein without assistance from an external power source. One example of electrical devices wholly powered by the energy harvesting device may be a sensor 50 connected for sensing a condition of the component within the casing during operation of the combustion turbine. Another example of electrical devices wholly powered by the energy harvesting device may be a transmitter in communication with the sensor for wirelessly transmitting the data signal outside the casing.

Electrical assembly for monitoring conditions in a combustion turbine operating environment

An apparatus for determining the present position of a vehicle (1), by utilizing a visible-light communication system. The apparatus uses a visibleiight communication beacon and video data representing an image photographed by one camera. The beacon emits a visible optical signal (310), thus transmitting position data. The visible-light communication beacon comprises a road-illuminating lamp (30) and a visible-light communication apparatus (31), both secured to a lamp post (3). The vehicle (1) has the camera and a vehicle position determination apparatus (10). The vehicle position determination apparatus (10) demodulates the visible optical signal (310), there restoring the position data, and calculates the present position of the vehicle (1) from the position data.

Method and apparatus for determining the position of a moving object, by using visible light communication

A telemetry system for use in a combustion turbine engine (10) having a compressor (12), a combustor and a turbine (16) that includes a sensor (50, 74) in connection with a turbine blade (18) or vane (22). A telemetry transmitter circuit (210) may be affixed to the turbine blade (18) with a first connecting material (52, 152) deposited on the turbine blade (18) for routing electronic data signals from the sensor (50, 74) to the telemetry transmitter circuit (210), the electronic data signals indicative of a condition of the turbine blade (18). An induction power system for powering the telemetry transmitter circuit (210) may include a rotating data antenna (202) affixed to the turbine blade (18) with a second connecting material (140) deposited on the turbine blade (18) for routing electronic data signals from the telemetry transmitter circuit (210) to the rotating data antenna (202). A stationary data antenna (184) may be affixed to a static seal segment 180 adjacent the turbine blade (18) for receiving electronic data signals from the rotating data antenna (202).

Instrumented component for wireless telemetry

The present invention relates to a radar system having a synthetic aperture on the basis of rotating antennae. In order to achieve real-time capacity with a high discrimination despite the high data flow, reference functions are determined by a geometry module and a circuit for dividing the strip illuminated by the antennae into a specific number of range intervals. As a result of the division of the overall analysis circuit into individual modules, a complete analysis of the incoming signals can take place despite the high data flow. By signals from additional kinematics sensors integrated into the tips of the rotor carrying the antennae, the reference functions are corrected for rotor movements which deviate from the ideal orbit.

Radar system having a synthetic aperture on the basis of rotating antennae

Radargerät zur Hinderniswarnung

The present invention pertains to a device for motion compensation for a radar with synthetic aperture based on rotating antennas (ROSAR) for helicopters, with which the flight guidance of the helicopter is made possible according to a radar image on a ROSAR basis, because this device substantially improves the quality of this radar image.

Device for motion error compensation for a radar with synthetic aperture based on rotating antennas (ROSAR) for helicopters

The invention relates to an all-weather sight system which combines information from a radar sensor based on ROSAR with navigation and flight control information to produce a synthetic sight for the pilot. In this case, the radar uses the rotary movements of rotating arms - in this case in the form of a capstan (spider) mounted above the rotor axis - which is protected against aerodynamic forces by an aerodynamically formed body (radome), and the radar transmitter as well as the radar receiver are positioned on the rotor head.

All-weather sight system for helicopters

The invention relates to an all weather visual system that combines information from a ROSAR type radar sensor with navigation and flight information to provide artificial vision for the pilot. The radar utilizes the movements of rotating arms fixedly mounted on the rotor head of a helicopter. For this purpose, a turnstile is used as the central carrier structure, which is protected by an aerodynamically shaped body against atmospheric forces. The radar transmitter and radar receiver are located on the rotor head and in the tips of the rotating arms, respectively.

Helmut Klausing

Papers

Radar system having a synthetic aperture on the basis of rotating antennae

Radargerät zur Hinderniswarnung

Device for motion error compensation for a radar with synthetic aperture based on rotating antennas (ROSAR) for helicopters

All-weather sight system for helicopters

All weather visual system for helicopters